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wel
3 years ago
7

I need help with problems 1 and 2

Mathematics
2 answers:
liberstina [14]3 years ago
8 0
10,196,334
7,816,863
Hoped this helped
statuscvo [17]3 years ago
6 0
1. 1019634
2. 7816863
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Factor the expression below.
Sonbull [250]

Answer:

(3x -1) (3x+1)

Step-by-step explanation:

9x^2 - 1

Rewriting

(3x)^2 -1^2

This is the difference of squares a^2 -b^2 = (a+b) (a-b)

(3x -1) (3x+1)

3 0
3 years ago
Read 2 more answers
2=6<br> 3=12<br> 4=20<br> 5=30<br> 6=42<br> 9=?
REY [17]
It is a pattern so 2*3=6
3 times 4 is 12
4 times 5 is 20 
5 times 6 is 30
6 times 7 is 42
so, 9 times 8 is 72.

please vote as brainliest
4 0
3 years ago
find the present value of an investment that is worth $19,513.75 after earning 3percent simple interest for 5.5 years
Dahasolnce [82]

Answer:

present value = $16750

Step-by-step explanation:

The simple interest formula allows us to calculate A, which is the final amount. According to this formula, the amount is given by A = P (1 + r*t), where P is the principal, r is the annual interest rate in decimal form, and t is the loan period expressed in years

simple interest formula:

t: time

P: present value

A: amount

r : anual interest

A = P (1 + r*t)

P = A / (1 + r*t)

P = 19,513.75 / (1 + 3/100 * 5.5)

P = 19,513.75/ (1 + 0.165)

P = 19,513.75 / 1.165

P = 16750

present value = $16750

5 0
3 years ago
It takes 120 newspapers to fill 8 recycling bins. What is the unit rate in newspapers per recycling bin?
bekas [8.4K]
You just do 120 divided by 8 which is about 15 newspapers
8 0
3 years ago
Read 2 more answers
The formula for finding the area of a triangle is A = 1/2bh. A triangle has height 12 in. and area 54in^2. What is the length of
KatRina [158]

Answer:

9in

Step-by-step explanation:

54 = 1/2(12*x)

54 = 6*x

x = 9

Check

12 x 9 = 108

108/2 = 54

8 0
2 years ago
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